光CDMA系统中二维扩展edw码的性能分析

M. N. Nurol, A. R. Arief, M. Anuar, S. Aljunid, N. Din Keraf, Suki Arif
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引用次数: 9

摘要

二维光码分多址(2-D OCDMA)技术已成为光通信领域的研究热点。这项工作旨在提出一种制定光谱/空间非相干二维扩展增强双权重(2-D Extended- edw)码的替代方法。该码利用多址干扰(MAI)抵消特性来抑制相位诱导强度噪声(PIIN)。数值分析表明,与一维增强双权码相比,二维EDW码在误码率(BER)和基数方面具有更好的性能。通过对二维Extended-EDW码的不同空间码长和频谱码长组合进行比较,发现增加时间芯片的数量可以显著提高系统的性能。
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Performance analysis of 2-D Extended-EDW Code for optical CDMA system
Two-dimensional Optical Code Division Multiple Access (2-D OCDMA) has gained great interest among researchers in optical communication systems. This work is aimed to present an alternative way of formulating the spectral/spatial incoherent two-dimensional Extended Enhanced Double Weight (2-D Extended-EDW) code. This code is proposed to suppress the phase induced intensity noise (PIIN) by using multiple access interference (MAI) cancellation property. The numerical analysis shows that 2-D EDW code has a better performance, in terms of bit error rate (BER) and the cardinality compared with one-dimensional Enhanced Double Weight (1-D EDW) code. In comparison with different combinations of spatial and spectral code length for 2-D Extended-EDW code, we found that by increasing the number of time chip, it significantly enhances the performance of the system.
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